Researchers consider that the combination of different oils in fish help strengthen bones over time.
North-eastern University researchers confirmed that omega 3 fatty acids from fish in our diets assist in the prevention of bone loss.
The study explored the dietary habits of more than 600 seniors living in Framingham, Massachusetts.
Bone density measurements were taken from their hips four years apart.
Women who consumed three or more weekly servings of dark fish, like mackerel or salmon, lost lesser amounts of bone in contrast to those who ate less fish.
Men who were on diets of dark fish or tuna at least three times a week also experienced more bone loss than other men.
Fish is high in the omega 3 fatty acids, such as, EPA and DHA.